Castle Doombad not only twists the perspective around, but it also puts you in the shoes of a dastardly villain besieged by do-gooding heroes. Set up a bunch of traps in your multi-level castle and keep hold of that captive princess.

Stripping out the mindless shooter elements of the classic Metal Slug universe might sound crazy, but in Metal Slug Defense it works beautifully. Send out your troops to take over the enemy's base, utilising their special abilities in glorious 2D pixel-art fashion.

From its side-on perspective to its cute silhouette art style, Defen-G Astro does thinks a little bit differently. Here, the action is fast and flowing as you strategically position and stack your little warriors for the next impending assault.